Universal joint.



HUFF. UNIVERSAL JOINT.

APPLICATION FILED JAN. 27, 1908.

- Patented De0.2, 1913.

llweizior 4 4 2 W u I 3 2 w I 2. M 9 y I M I V gkl A Q 1 E m & K UIII mV. 2 8 2 2? 1 g I :=mz E I| W 9 w 2 tion with the nussunn. HJIEE, 0F;DETROIE, Muir-risen; ASSI GNQR, Bx MESNE ASSIGNMENTS, TO RAGBABD Moron.GAB. COMPANY, on nnrnorr, MICHIGAN, A coaronarrou or MICHIGAN.

UNIVERSAL JOINT.

Patented Dec. 2,1913.

Application filed January 27, 1908.; Serial No. 4125865;

To all wltomc't may concern: 7

Be it known that I, RUSSELL HUFF, a c1t1- zen of the Unitedfitates, andresident of Detroit, Wayne county, State of Michigan,

have invented certain' new and useful Improvements in Universal'Joints,of which the followingis a; specification. The object of the presentinventionis to simplify the construction ofuniversaljoints, such as areused in the drive shafts of motor. vehicles andtoproduce a joint whichmay be readily lubricated and which will hold lubricating material and.exclude dlrt and dust, thereby decreasingthe friction 1n the joint to aminimum and-prolonging its life.

The-:inyentiomwillrbe describedzin connecwhich,

Figure 1 is a'longitudinal section through a universal joint embodyingthe invention upon the line 1-1 of Fig. 3; Fig. '2 1s a similar sectionupon the line 22 of Fig. 3 and Fig. 3 is a transverse section upon theline 33 of Fig. 2. I

Referring to the drawing, A, B, are the two shaft sections which areunited flexibly by the universal joint. Either one of these shaftsections may be the driven shaft and the other the driving shaft. Uponthe end of the section B is .a cross head and upon the end of thesection A a housing surrounding the cross head, both of which featureswill be presently described.-

Upon the end of section A is securely fastened a head comprising ahub orcollar 10 having a circular flange 11 approximately registering with theend of the shaft and two jaws 12 extending beyond the end of the shaft.Each of the jaws 12 has a central .recess 13'and working faces 14 onopposite sides of said recess, the working faces of the two jaws beingopposed and parallel.

.The jaws 12 have cylindrical outer surfaces to which a ring 15 issecurely fitted, for a purpose to be hereinafter mentloned.

At the rear or lnner end-of the ring 15 the jaws are preferably of thesame diameter.

as the outer surface of the ring so that the ring and the exposedportions of the jaws form a uniform cylindrical surface. 9

A sheet metal casing 16 has a cylindrical portion 17 fitting over thejaws 12 and the ring 15, a flange 18 fitting against the flange 11, anda reduced portion or throat 19 exaccompanying drawing, in;

tending beyond the j awe andsurrounding the shaft section B, the throatbeingsufli cientl'y large to-permit, the shaft section B to assume anyof its operative positions without touching-the casing. The flange 18 issecurely clamped between the flange 11 and a ring 20, these parts beingconnected by'suitable bolts or screws 21. The forward part of the throat19 has-an-externalgroove or-annular depression 22 to=which is securedone end of a flexible tube 23, the other end of said tube being securelyconnected to a ring-2 L which is fast on the shaft-B. The tube 23permits of the universal relative movement of: the shaft sections whileit forms a dust proof closure for the casing 19. The. flange 11 isprovided. with a.boss25.in which is a radially arranged oil hole nor-.mally closed by a screw cap 26. Diametrically opposite to the boss 25is a second boss 27 of sufficient weight to counter-balance the parts 25and 26. The oil hole in the part 25 communicates directly with theinterior of the joint and forms a convenient means for oiling the joint.

Upon .theinner end'of the shaft section B is a cross head or pin 28carrying a pair of anti-friction rollers 29 which are free to move backand forth on the parallel ways or faces 14 of the jaws 12. The ring 15,

which is preferably constructed of steel, holds the rollers onthe crosshead and keeps the cross head in proper position within the casing.During the rotation of the shaft sections, when one end is at a slightangle to the other, the rollers 29 run back and forth on the ways 14 andthe shaft section Bswings more or less into each of the recesses 13 inthe jaws.

The universal joint herein described is dirt proof" and adapted tocontain'a considerable uantity of lubricating material without lea age,while at the same time it is adapted to work with perfect freedom.

Having described myinvention what I claim and desire to secure byLetters-Patent is,

1. In a universal joint for shafting, the combination with alshaftsection havlng a cross head and anti-friction rollers, of a second shaftsection having securely connected therewith an annular flange and jawsprovidedwith ways for the cross head rollers,

a ring surrounding said jaws and adapted a casing surrounding said andjaws and adapted to hold the ring in p ace and means 1 for securelyconnecting said casing with said and a casing having a cylindricalportion surrounding said ring and jaws, a flange connected to theaforesaid annular flange and a throat or contracted portion surround ingthe first named shaft section.

. 3. In a universal joint for shafting, the

r a combination with a shaft section having a cross head andanti-friction rollers, of a second shaft section having securelyconnected therewith a head provided with a pair of jaws, said jawshaving ways for the cross head rollers, a ring surrounding and securely.fitted to said jaws and adapted to guide the cross head and rollers, acasing therewith a head provided with a pair of jaws, said jaws havingways for said cross head rollers, a ring surrounding and securely fittedto said; jaws, and a casing fitting over and inclosing said ring andjaws and adapted to hold the ring in place, said casing being securelyconnected with said head and having a.reduced portion or throatsurrounding the first named shaft section, font-he purpose set forth. Intestimony whereof I aflix my signature in presence; of two witnesses. IRUSSELL HUFF. Witnesses:

L. C. Tn mnr, CLARA I, DALE.

